Data processing: database and file management or data structures – Database and file access – Preparing data for information retrieval
Reexamination Certificate
2007-08-13
2010-12-07
Robinson, Greta L (Department: 2169)
Data processing: database and file management or data structures
Database and file access
Preparing data for information retrieval
C707S713000, C707S765000, C707S913000
Reexamination Certificate
active
07849092
ABSTRACT:
The systems and methods described create a mathematical representation of each of the media objects for which user ratings are known. The mathematical representations take into account the subjective rating value assigned by a user to the respective media object and the user that assigned the rating value. The media object with the mathematical representation closest to that of the seed media object is then selected as the most similar media object to the seed media object. In an embodiment, the mathematical representation is a vector representation in which each user is a different dimension and each user's rating value is the magnitude of the vector in that dimension. Similarity between two songs is determined by identifying the closest vectors to that of the seed song. Closeness may be determined by subtracting or by calculating the dot product of each of the vectors with that of the seed media object.
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Slaney Malcolm
White William
DeCarlo James J.
Greenberg & Traurig, LLP
Robinson Greta L
Wilcox James J
Yahoo ! Inc.
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